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kvasek [131]
3 years ago
12

X + 5 = 10 A) x = 2 B) x = 3 C) x = 4 D) x = 5

Mathematics
2 answers:
MrRa [10]3 years ago
8 0

D.) x = 5, because when you plug five in for x, 5 + 5 = 10 is correct.

Blababa [14]3 years ago
3 0

Hey there!

            \bold{x+5=10}

  1. \bold{A.)x=2}
  2. \bold{B.)x=3}
  3. \bold{C.)x=4}
  4. \bold{D.)x=5}

<h2>Okay, so first we have to do the <u><em>OPPOSITE</em></u> of \bold{addition} (which is \bold{subtraction})</h2><h3>So, \bold{subtract} by \bold{5} on each of the sides </h3>
  • \bold{x+5-5}  \bold{=10-5}
  • \bold{Cancel:5-5} because that gives you the result of \bold{0} which is <u><em>NOT</em></u> our answer
  • \bold{Keep:10-5} because it gives us the result your "\bold{x-term} "
  • \boxed{\boxed{\bold{Answer:x=5}}}

Good luck on your assignment and enjoy your day!


~\bold{LoveYourselfFirst:)}


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Given h(x) = 2x - 1, find h(-1).
patriot [66]

Answer:

h(-1) =-3

Step-by-step explanation:

h(x) = 2x - 1

Let x = -1

h(-1) = 2(-1) -1

h(-1) = -2-1

h(-1) = -3

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Phoebe, Andy and Polly share £270.
Stella [2.4K]
*Given
Money of Phoebe            - 3 times as much as Andy
Money of Andy                - 2 times as much as Polly
Total money of Phoebe,  - <span>£270
</span>    Andy and Polly

*Solution

Let
B - Phoebe's money
A - Andy's money
L - Polly's money

1. The money of the Phoebe, Andy, and Polly, when added together would total <span>£270. Thus, 
</span>
                  B + A + L  = <span>£270                     (EQUATION 1)

2. Phoebe has three times as much money as Andy and this is expressed as
  
                  B = 3A

3. Andy has twice as much money as Polly and this is expressed as

                  A = 2L</span>                           (EQUATION 2)
<span>
4. This means that Phoebe has ____ as much money as Polly, 

                 B = 3A
                 B = 3 x (2L)
                 B = 6L                            </span>(EQUATION 3)<span>

This step allows us to eliminate the variables B and A in EQUATION 1 by expressing the equation in terms of Polly's money only. 

5. Substituting B with 6L, and A with 2L, EQUATION 1 becomes, 

                  6L + 2L + L = </span><span>£270
</span>                                9L = <span>£270
</span>                                  L = <span>£30

So, Polly has </span><span>£30. 

6. Substituting L into EQUATIONS 2 and 3 would give us the values for Andy's money and Phoebe's money, respectively. 
</span>
                  A = 2L                           
                  A = 2(£30)
                  A = £60

Andy has £60

                  B = 6L                         
                  B = 6(£30)
                  B = £180

Phoebe has £180

Therefore, Polly's money is £30, Andy's is £60, and Phoebe's is £180.
7 0
3 years ago
Hi ill give points answer me now bye
Usimov [2.4K]
Can you pls brainlest me I need it so much
5 0
2 years ago
Read 2 more answers
I REALLY NEED SOME HELP! THANK YOU SO MUCH!
Katyanochek1 [597]
I thinkkk it’s both so C
4 0
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